Thermocouple

HOBO^® U12 Thermocouple Logger

HOBO U12 Stainless Steel Temp Logger with Food Grade Housing and Extended Temp Range

Size/Weight 5.8 x 7.4 x 2.2 cm (2.3 x 2.9 x 0.85”)
46 gms (approximately 1.6 oz)

The new HOBO U12 J, K, S, T Thermocouple logger with 12-bit resolution provides high-accuracy measurement over wide temperature ranges. One logger model accepts any J, K, S, or T thermocouple probe with a plug-in subminiature connector; thermocouple type is selected in software at time of deployment. The U12 Thermocouple logger includes an internal thermistor for cold-junction compensation and recording of ambient temperature. The U12 Thermocouple logger requires Onset’s GreenLine™ (Windows®) or HOBOware™ (Mac) software for logger launch, offload, and data viewing.

Features & Specifications

Single-channel logger accommodates four thermocouple types (J, K, S, T)
Use with standard thermocouple probes with plug-in subminiature connectors
12-bit resolution
43,000 measurements memory capacity
Automatic cold-junction compensation
Direct USB Interface
1-year battery life (typical)—user-replaceable CR-2032 lithium battery
Battery level indication at launch
Battery level can be recorded as a separate channel
Operating Range for logger: 0 to 50°C (32° to 122°F), 0-95% relative humidity, non-condensing

Detailed Specifications

	Temp Measurement Ranges	Accuracy*	Max/Min Resolution
Type J (Iron-Constantan)	0° to 750°C (32 to 1382°F)	±2.5°C (±4.5°F)	0.21° at 375°C (0.38° at 707°F)

Type K (Chromel-Alumel)	0° to 1250°C (32° to 2282°F)	±4.0°C (±7.2°F)	0.32° at 625°C (0.58° at 1157°F)

Type S (Platinum-Rhodium)	-50° to 1760°C (-58° to 3200°F)	±6.0°C (±11°F)	0.44° at 855°C (0.79° at 1571°F)

Type T (Copper-Constantan)	-200° to 100°C (-328° to 212°F)	±1.5°C (±2.7°F)	0.1°C at -50°C (0.18° at -58°F)

Internal Temp	0° to 50°C (32° to 122°F)	±0.35°C (±0.63°F)	0.03° at 25°C (0.05° at 77°F)

* Logger Only

Required Software
GreenLine^® Software version 1.1 (Windows®) or HOBOware™ Software (Mac) software is required to operate the HOBO^® U12 Thermocouple logger. Each starter kit includes software, USB interface cable, and software manual.

	Description	Part No.
1	Data Logger
	U12 Thermocouple Logger	U12-014
2	Software Starter Kits - One Required
	GreenLine^® Software (Windows)	BGL
	HOBOware™ (Mac)	BHW

3	Sensors & Input Cables
	(1.8m) 6 ft Beaded Thermocouple with connector - Type J	TC6-J
	(1.8m) 6 ft Beaded Thermocouple with connector - Type K	TC6-K
	(1.8m) 6 ft Beaded Thermocouple with connector - Type T	TC6-T
	(30cm) 12" Stainless-Steel Probe Thermocouple - Type K	TCP6-K12
	(30.5m) 100 ft of 24-AWG Thermocouple wire - Type J	TCW100-J
	(30.5m) 100 ft of 24-AWG Thermocouple wire - Type K	TCW100-K
	(30.5m) 100 ft of 24-AWG Thermocouple wire - Type T	TCW100-T
	Subminiature Connector for Type J wire	SMC-J
	Subminiature Connector for Type K wire	SMC-K
	Subminiature Connector for Type T wire	SMC-T

Thermocouple Probes & Wires

Measure a wide range of temperatures using standard thermocouple probes!



All probes have standard subminiature thermocouple connectors and plug directly into HOBO U12 or H12 Thermocouple Family loggers. The connectors are color-coded for type J (black), K (yellow), and T (blue) thermocouples according to the ANSI standard. Note that the accuracy specifications are for the probes only, and must be added to the logger’s accuracy to determine the combined measurement accuracy.


Beaded Thermocouple Probes on Spool Caddies These exposed-junction thermocouple probes include 1.8m (6') of insulated 30-AWG wire wound on an integrated spool caddy/subminiature connector. Type J Range: 0°C to 250°C (32°F to 482°F) Initial Accuracy: ±2.2°C (±4°F) Teflon Insulation* Type K (available for Standard and Intrinsically Safe (IS) model) Range: 0°C to 285°C (32°F to 545°F) Initial Accuracy: ±0.75%*** Range: 285°C to 482°C (545°F to 900°F) Initial Accuracy: ±2.2°C (±4°F) Glass Braid Insulation Type T** Range: -200°C to -65°C (-330°F to -85°F) Initial Accuracy: ±1.5%*** Range: -65°C to 130°C (-85°F to 270°F) Initial Accuracy: ±1.0°C (±1.8°F) Range: 130°C to 180°C (270°F to 356°F) Initial Accuracy: ±0.75%*** Teflon Insulation*

High-Temperature Stainless-Steel Probe - Type K • 30cm (12") 304 stainless-steel probe; 0.5cm (3/16”) diameter with isolated thermocouple • 2.5cm (1") handle with spring-type strain relief • 1.8m (6') 19-AWG cable Range: 0°C to 293°C (32°F to 559°F) Initial Accuracy: ±2.2°C (±4°F) Range: 293°C to 900°C (559°F to 1650°F)**** Initial Accuracy: ±0.75%***

Subminiature Thermocouple Connectors • Accept stranded or solid wire up to 20 AWG • Internal silicone grommet for strain relief • Captive cover screws • Write-on window • Type J, K, and T versions available

Thermocouple Wires 100' coils of insulated 24-AWG thermocouple wire Type J Range: 0°C to 250°C (32°F to 482°F) Initial Accuracy: ±2.2°C (±4°F) Teflon Insulation* Type K Range: 0°C to 285°C (32°F to 545°F) Initial Accuracy: ±2.2°C (±4°F) Range: 285°C to 482°C (545°F to 900°F) Initial Accuracy: ±0.75%* Glass Braid Insulation Type T Range: -200°C to -65°C (-330°F to -85°F) Initial Accuracy: ±1.5%*** Range: -65°C to 130°C (-85°F to 270°F) Initial Accuracy: ±1.0°C (±1.8°F) Range: 130°C to 180°C (270°F to 356°F) Initial Accuracy: ±0.75%*** Teflon Insulation*